ENTITY Spark X2.5-4B

Spark X2.5-4B

PulseAugur coverage of Spark X2.5-4B — every cluster mentioning Spark X2.5-4B across labs, papers, and developer communities, ranked by signal.

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2026-09-01 product_launch SparkLLM released the open-source on-device models Spark X2.5-4B and Spark X2.5-1.7B, featuring a 1 million token context window. source

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SIGNIFICANT · CL_228597 · Sep 1 · 03:21

SparkLLM releases open-source on-device models with 1M token context

SparkLLM has released two open-source, on-device language models, Spark X2.5-4B and Spark X2.5-1.7B, both featuring a native 1 million token context window. This extended context capability allows the models to process …